Question

Q. Consider the following pairs:

Interspecific Interactions	Example
1. Commensalism	Golden jackal following Tigers
2. Ammensalism	Birds living is hollow trees
3. Mutualism	Interaction between lion and tiger
4. Parasitism	Mosquitoes biting human resulting in Malaria

Which of the above pairs is/are correctly matched?

• A.
  1, 2 and 3 only
• B.
  1 and 4 only
• C.
  2 and 4 only
• D.
  4 only

Answer 1

The correct option is B

1 and 4 only
Explanation:

Pair 1 is Correctly matched: Commensalism is the interaction in which one species benefits and the other is neither harmed nor benefited. A Golden jackal follows Tiger and eats the leftover animals killed by Tigers. However, the tiger does not get any benefit or harm from it.

Pair 2 is incorrectly matched: Ammensalism is a relationship between organisms of different species in which one organism is inhibited or destroyed while the other organism remains unaffected. Birds that live in the hollows of trees are commensal. Their presence generally does not harm the tree, but the tree provides the bird with shelter and protection.

Pair 3 is incorrectly matched: Mutualism is an interaction which confers benefits on both the interacting species. Tiger and Lion do not benefit each other but are each other's competition.

Pair 4 is correctly matched: Parasitism is a relationship between two things in which one of them (the parasite) benefits from or lives off of the other. Mosquitoes bite humans to obtain blood to nurture their eggs, but humans may get vector borne disease from it.